Modern smartphones Xiaomi, Redmi and POCO These are equipped with a layered data protection system that often confuses users when resetting or flashing, and the request “where to find the xiaomi security code” usually occurs in three main scenarios: when you try to unlock the bootloader, restore access to the Mi Account after a reset or unlock SIM-Depending on the situation, a "security code" can mean completely different sets of numbers and symbols, each of which is stored in a unique location.
Understanding the nature of the code you're asking for is the first step to successfully solving a problem, if you've just forgotten the pattern lock or PIN-The unlock code is handled through a Google account or Mi Account, but if it involves deep system locking related to the Mi Unlock Tool or linking the device to the manufacturer’s servers, standard methods may not work. In this article, we will discuss in detail all types of protection codes used in the ecosystem. MIUI HyperOS and we will show you the exact ways to get them.
⚠️ Warning: Do not try to enter random combinations of numbers into bootloader unlock fields more than three times in a row.This can lead to a temporary lock of unlock function for 7 or 30 days, which will significantly delay the process of restoring access to the device.
Types of protection codes in the Xiaomi ecosystem
Before looking for a specific combination, it is important to clearly identify what code your device needs.Mi Account users often confuse Mi Account ID, unlock code of the loader and PUK-sim-card. MIUI It uses a complex verification system where each type of code performs a strictly defined function and cannot be replaced by another.
The most common request concerns the code to unlock the bootloader, which is required to install custom firmware or obtain superuser rights (Root), this code is not a static number, but is generated as a time-bound account to the account. IMEI-The other type is the identity code of the owner, which is requested when you try to reset your settings through Recovery Mode if the phone has activated a search for the device.
- 🔓 Unlock Code: A virtual key that links a device to a Mi Account for firmware permission.
- 🆔 Mi Account Password: The password required after a reset (FRP lock).
- 📱 PUK-code: Unlock code SIM-Postcards after multiple incorrect entry PIN.
- 🔒 Screen Lock: pattern lock, digital or alphanumeric screen unlock password.
It's important to distinguish between software constraints and hardware protections. If a phone requires code after buying it from hand, chances are the previous owner hasn't untied the device from his account. In this case, no universal codes will help - you only need the password of the previous owner. The only legal way to unlock Mi Account is to enter a password from the account to which the device is associated.
Where to find the code to unlock the bootloader (Bootloader)
The process of unlocking the bootloader on Xiaomi smartphones is the most difficult step for enthusiasts. Many people mistakenly believe that there is some hidden master code or generator that can be entered into the engineering menu.
To start, you need to apply through a special application Mi Unlock Status or directly through the Mi Unlock Tool desktop utility. After submitting an application, the system sets a wait, which is standard 168 hours (7 days), during which time a record is created on the server that a particular Mi-acca!unt has the right to unlock a device with a certain IMEI.
Once the waiting period has expired, you plug your phone into your PC, you launch the Mi Unlock Tool, and you press the "Unlock" button, and that's when the utility asks for confirmation, and if you see a request to enter a code, it's likely that the system requires you to re-authorize the Mi Account that was used to submit the application. No additional numerical code is needed, the process is in the background.
☑️ Checking before unlocking
There is a myth that Deep Testing is a way to avoid waiting, which used to be a file-licensed program, but now it is officially closed to most regions, and attempts to buy a quick-unlock code from third-party services often result in theft of account data.
⚠️ Warning: Unlocking the bootloader automatically erases all data from the device (Wipe Data). be sure to save important photos and contacts before starting the procedure, as it will be impossible to restore them without a backup copy.
Mi Account and lockdown after reset
The most critical situation for the user occurs when, after resetting to factory settings (Hard Reset), the phone requires you to enter the password from the Mi Account. This is the work of the Find Device function, which protects the smartphone from theft. If you forget the password, a simple security code here will not help — you will need a procedure to restore access through official channels.
The security code in this context is your account password. If you don't remember it, go to the official i.mi.com website or the Xiaomi password recovery page, you need access to your linked phone number or backup email address, and the system will send a confirmation code (SMS or email) that will allow you to set a new password.
| Type of lockdown | Where requested | Can we get around? | The necessary tool |
|---|---|---|---|
| Mi Account Lock | At first loading after discharge | Only the owner's password | Smartphone/PC |
| Bootloader Lock | When running through Fastboot | Wait 7 days | Mi Unlock Tool |
| Google FRP | After resetting without leaving Google | Hard, we need rounds. | PC/Special. Soft. |
| SIM PUK Lock | When blocking a SIM card | Only the PUK code. | Contract of operator |
In some cases, users buy used phones that are locked up. If a seller claims that a "security code" can be bought from him for money, it's a lie. Without access to the original account, the device turns into a "brick" for the average user. Xiaomi's official support also won't remove the lock without a purchase check confirming ownership.
What to do if you bought a used phone with someone else’s account?
Unlocking SIM-maps PUK-code
Often, the term “security code” is used by users. PUK-code required after three times incorrectly entered PIN-This code has nothing to do with Xiaomi software or MIUI. It is stored on the chip of the SIM card of the operator (MTS, Beeline, MegaFon, Tele2 etc.).
Find it. PUK-You can use the code in a number of ways without going to the phone, most often it's on the plastic card that you used to break your SIM card from when you bought it, and if the plastic is lost, you can find it in the operator's personal account on your website or in the mobile app of your plan.
- 📄 Plastic base: Look for the inscription PUK or PUK1 back-of-the-card.
- 💻 Personal account: Section "Settings" or "Information about the SIM card" on the operator's website.
- 📞 Support: Call to operator from another number after passing the identification.
- 📦 Contract: Sometimes the code is written in a paper copy of the connection contract.
Be extremely careful when entering. PUK-You only have 10 attempts. After ten wrong inputs, the SIM card is permanently blocked and cannot be restored, you have to buy a new one from the operator with a number saved.
💡
Save it. PUK-Take a photo of the plastic card base and send the photo to your favorites in the messenger or cloud storage so you can access the code even if you lose plastic.
Engineering menus and hidden diagnostic codes
For advanced users and repair professionals, there are special engineering codes that allow accessing hidden sections of the MIUI menu. These codes are entered through a standard call (the Phone app).
One of the most famous codes for checking the status of unlocking and binding an account is ##6484## (CIT Menu) or ##4636## (Test Menu). In the CIT section, you can check the operation of all sensors, but you can't find the "unlock code" there. Some users search for code to reset FRP, but in modern versions of HyperOS and MIUI 14/15, such loopholes through the engineering menu are closed.
#6484## - Entrance to the Engineering Menu (CIT)
#4636## - Phone and battery information
*#06# - Displaying IMEI and serial numberThere is also code ##7780##, which resets settings to factory settings, but only deletes user data and installed applications, leaving system files unuched. To perform this operation, the phone will still request a confirmation or screen password, if it is installed. Using these codes without understanding their purpose can lead to unstable device operation.
💡
Engineering codes are a powerful diagnostic tool, but they are not a universal keypad for unlocking account locks or downloaders; their functionality is strictly limited to component testing.